What are the effects of blending other oils at atmospheric pressure?
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This post was last edited by lingguiyuan on 2009-8-6 at 16:36. For example, the oil being blended now is quite heavy residue oil; it takes 3 hours to fill the volume of the atmospheric tower with crude oil. What impact does this have on operations when blending stops, at the same furnace outlet temperature? Relatively speaking, how long after stopping the blending of diesel (all at a ratio of 1/20 or so) does the operation of the atmospheric tower need to change? After the addition of these two substances is stopped, the one that has a faster impact on the system shows effects that are more noticeable and occur more quickly (diesel? Residue)? Which one has a longer duration of effect?
The fastest reaction occurs when residue oil is blended in, mainly in the electrodesalting system; after mixing with water, it easily causes the crude oil to emulsify. In mild cases, the current increases, the voltage decreases, and power consumption rises ； For severe cases, the electrodesalination transformer has a trip protection mechanism.
Stopping the blending of residue oil means that the properties of the crude oil become lighter; if the furnace outlet remains unchanged, the asphalt may soften, while stopping the use of diesel may have the opposite effect. I think the parameter that may respond fastest is the pressure in the electrodesalting tank when diesel blending is stopped. Once blending stops. The electrodialysis pressure may rise quite quickly